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To dedicate GPIOs to very-low-leakage/low-noise
external signal measurement |
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To fix the function of GPIOs (for instance, the op amps
immediately available after power up) |
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To change the serial interface protocol |
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To implement an auxiliary switching regulator control loop
to drive external components |
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To access almost any input or output of the internal circuit |
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To dedicate GPIOs to a specific digital interface to directly
access some functions |
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To implement voltage references through one or two GPIOs
(up to 500 values are available) |
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To transform the SPI 4-wire interface into a 3-wire interface
(only one in/out data pin) |
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To set a specific start up sequence or add a new sequence |
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To create IPs to interconnect the various functions |